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sakurabird/Kind.swift

Last active Aug 22, 2018
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Swift4.0 Codable + Realm (CodableでJsonをパース→RealmでDBに投入)
//
// Kind.swift
// ExamRealm1
//
// Created by Sakura on 2018/01/22.
// Copyright © 2018年 Sakura. All rights reserved.
//
import Foundation
import RealmSwift
class Kind : RealmSwift.Object, Codable {
@objc dynamic var id: Int = 0
@objc dynamic var name: String?
@objc dynamic var typeId: Int = 0
enum CodingKeys: String, CodingKey {
case id = "id"
case name = "name"
case typeId = "type_id"
}
required convenience init(from decoder: Decoder) throws {
self.init()
let values = try decoder.container(keyedBy: CodingKeys.self)
id = (try values.decodeIfPresent(Int.self, forKey: .id))!
name = try values.decodeIfPresent(String.self, forKey: .name)
typeId = (try values.decodeIfPresent(Int.self, forKey: .typeId))!
}
override static func primaryKey() -> String? {
return "id"
}
}
{
"kinds": [
{
"id": 1,
"name": "穀類",
"type_id": 1
},
{
"id": 2,
"name": "豆・種実・藻類",
"type_id": 1
},
{
"id": 3,
"name": "いも・野菜・きのこ類",
"type_id": 1
},
{
"id": 4,
"name": "果実類",
"type_id": 1
},
{
"id": 5,
"name": "魚介類",
"type_id": 1
},
{
"id": 6,
"name": "肉類",
"type_id": 1
},
{
"id": 7,
"name": "卵・乳類",
"type_id": 1
},
{
"id": 8,
"name": "油脂類・調味料・香辛料",
"type_id": 1
},
{
"id": 9,
"name": "砂糖・ジャムなど",
"type_id": 1
},
{
"id": 10,
"name": "主食(ごはん・パンなど)",
"type_id": 2
}
]
}
//
// Kinds.swift
// ExamRealm1
//
// Created by Sakura on 2018/01/22.
// Copyright © 2018年 Sakura. All rights reserved.
//
import Foundation
class Kinds : Codable {
let kinds : [Kind]?
enum CodingKeys: String, CodingKey {
case kinds = "kinds"
}
required init(from decoder: Decoder) throws {
let values = try decoder.container(keyedBy: CodingKeys.self)
kinds = try values.decodeIfPresent([Kind].self, forKey: .kinds)
}
}
//
// ViewController.swift
// ExamRealm1
//
// Created by Sakura on 2018/01/19.
// Copyright © 2018年 Sakura. All rights reserved.
//
import Foundation
import UIKit
import RealmSwift
class ViewController: UIViewController {
// var realm: Realm!
var kinds: [Kind]?
override func viewDidLoad() {
super.viewDidLoad()
loadJsonFile()
saveDB()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func loadJsonFile() {
guard let path = Bundle.main.path(forResource: "kinds", ofType: "json") else { return }
let url = URL(fileURLWithPath: path)
do {
let data = try Data(contentsOf: url)
let kinds = try JSONDecoder().decode(Kinds.self, from: data)
for kind in (kinds.kinds)!{
print("(json)kind.id:\(kind.id) name:\(kind.name ?? "null") typeId:\(kind.typeId)")
}
self.kinds = kinds.kinds
} catch {
print(error)
}
}
func saveDB() {
let realm = try! Realm()
try! realm.write {
realm.deleteAll()
for kind in self.kinds! {
realm.add(kind)
}
}
print(realm.objects(Kind.self))
}
}
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